| Summary: | 碩士 === 國立中正大學 === 通訊工程研究所 === 99 === International Mobile Telecommunication Advanced (IMT-Advanced) cellular system is defined by International Telecommunication Union (ITU). According to the ITU requirements, an IMT-Advanced cellular system must have target peak data rates up to 100 Mbit/s for high mobility such as mobile access and up to 1 Gbit/s for low mobility such as nomadic/local wireless access. IEEE 802.16m and 3GPP LTE-Advanced are two candidates of IMT-Advanced technology and both of them incorporate Femtocell Base Station into their next generation mobile network standards. Femtocell Base Station is a low power and low cost small base station in the customer premise. The aim of Femtocell is to improve indoor coverage, enhance system capacity and provide relief to Macrocell’s loading. How to make the most effective frequency sharing, interference management and radio resource allocation between macrocell base station and femtocell base station is a very important key technique.
In the thesis, we consider a next-generation mobile communication network deploying both macrocell base stations and femtocell base stations. We compare the system performance when using different macro/femto spectrum resource allocation strategies. Furthermore, in contrast to previous studies that use independent placement of fixed number of users, we simulate users entering and leaving the system in a more realistic setting. This will allow us to do a more accurate evaluation of call blocking or outage probabilities.
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